The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Oct. 21, 2008
Christopher A. Kaminski, Schenectady, NY (US);
Emil D. Jarczynski, Scotia, NY (US);
William D. Gerstler, Niskayuna, NY (US);
Norman J. Suguitan, Ballston Lake, NY (US);
Hendrik P. J. DE Bock, Clifton Park, NY (US);
Christopher A. Kaminski, Schenectady, NY (US);
Emil D. Jarczynski, Scotia, NY (US);
William D. Gerstler, Niskayuna, NY (US);
Norman J. Suguitan, Ballston Lake, NY (US);
Hendrik P. J. de Bock, Clifton Park, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A rotor is provided for a dynamoelectric machine having one or more windings. The windings have one or more turns, and the turns have one or more outlet ducts that are located near a chimney. When the outlet ducts are stacked one on top of another, they form substantially radially oriented passages. The heat transfer performance of a portion of the rotor can be improved by locating two or more circumferentially spaced radial ducts near the chimney. A chimney can also be formed of one or more chimney slots defined in at least a portion of the turns, where one or more chimney slots extend in a substantially slanted direction to a radial direction of the rotor. A transition region of the rotor can also include one or more diagonal flow channels, which discharge into one or more chimneys.